NIR Polariser Glass CUPO

CUPO® is a polarising glass for near infrared light utilising plasma absorption by copper fine particles. It is thin, achieves both high extinction ratios and low insertion losses, making it ideal as a component of small parts.

  • Copper fine particles dispersed in glass
  • High extinction ratio
  • Low insertion loss
  • High reliability

  • Optical isolator
  • Optical modulator
  • Wavelength selection switch
BandO-band, E-band, S-band, C-band, L-band
Extinction Ratio> 35 dB (Measured distance 5 mm)
> 50 dB (Measured distance 300 mm)
Transmittance (No AR coating)> 90%
Thickness (Standard)0.2 mm